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- W3155550520 abstract "The non-radical reaction based on persulfate is selective, so a large amount of inorganic anions and natural organic matter in the physical water environment can be ignored. In this work, Fe and S are doped into g-C 3 N 4 for establishing a novel electronic bond bridge on Fe-N-C-S. The difference in electronegativity resulting in a local polarization electric field on Fe-N-C-S. Therefore, a closed electronic loop of pollutants/catalyst/oxidant is established, thereby promoting non-radical electron transfer. The kinetic reaction rate constant of pollutant degradation increased by 51 times (1.32719 min −1 ). Surface reactive complexes and 1 O 2 are the main mechanisms of diclofenac sodium degradation. Poisoning experiments and normalized fitting confirmed the key role of S and the active site of Fe-catalyzed PMS. The system shows good adaptability to inorganic anions, wide pH range (3–9) and natural water bodies. The study provides a way to improve the electron transfer process in non-radical reactions. In this work, Fe and S are doped into g-C 3 N 4 to establish a new type of electronic bond bridge on Fe-N-C-S. The difference in electronegativity results in a locally polarized electric field on Fe-N-C-S. This leads to (1) Fe is the main site for PMS surface binding; (2) PMS oxidizes at the S site to produce 1 O 2 ; (3) Hydroxyl-containing compounds or H 2 O are combined near CN and then oxidized, and electrons are transferred through a polarized electric field To Fe, and further react with PMS. • The FeCN-S was designed to catalyze PMS for the degradation of drug. • Polarized electric field of Fe-N-C-S for enhanced PMS catalytic performance. • The PMS degradation rate of DCF catalyzed by FeCN-S increased 13 times. • DFT were employed to elucidate mechanism for Fe-N-C-S to enhanced PMS catalytic. • Phenolic compounds could be effectively treated in wide range of pH." @default.
- W3155550520 created "2021-04-26" @default.
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- W3155550520 date "2021-07-01" @default.
- W3155550520 modified "2023-10-03" @default.
- W3155550520 title "The polarized electric field on Fe-N-C-S promotes non-radical process of peroxymonosulfate degrade diclofenac sodium" @default.
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- W3155550520 doi "https://doi.org/10.1016/j.colsurfa.2021.126608" @default.
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